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Friday, November 16, 2018

Long-term effects of alcohol consumption

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Long-term effects of alcohol
Possible long-term effects of ethanol.svg
Most significant of the possible long-term effects of ethanol. Consumption of alcohol by pregnant mothers may result in fetal alcohol spectrum disorders.

The best available current evidence suggests that consumption of alcohol (chemically known as ethanol) does not improve health. Previous assertions that low or moderate consumption of alcohol improved health have been deprecated by more careful and complete meta-analysis. Heavy consumption of ethanol (alcohol abuse) can cause severe detrimental effects. Health effects associated with alcohol intake in large amounts include an increased risk of alcoholism, malnutrition, chronic pancreatitis, alcoholic liver disease and cancer. In addition, damage to the central nervous system and peripheral nervous system can occur from chronic alcohol abuse. The long-term use of alcohol is capable of damaging nearly every organ and system in the body. The developing adolescent brain is particularly vulnerable to the toxic effects of alcohol. In addition, the developing fetal brain is also vulnerable, and fetal alcohol spectrum disorders (FASDs) may result if pregnant mothers consume alcohol.

The inverse relation in Western cultures between alcohol consumption and cardiovascular disease has been known for over 100 years. Many physicians do not promote alcohol consumption, however, given the many health concerns associated with it; some suggest that alcohol should be regarded as a recreational drug, and promote exercise and good nutrition to combat cardiovascular disease. The best available evidence indicates that the small beneficial effects of moderate ethanol use on cardiovascular health are outweighed by the increased risk of cancer, injuries, violence, fetal damage, liver disease. Alcohol liver disease (ALD) accounted for four fifths of all chronic diseases in Ireland in 2013.

Withdrawal effects and dependence are also almost identical. Alcohol at moderate levels has some positive and negative effects on health. The negative effects include increased risk of liver diseases, oropharyngeal cancer, esophageal cancer and pancreatitis. Conversely moderate intake of alcohol may have some beneficial effects on gastritis and cholelithiasis. Of the total number of deaths and diseases caused by alcohol, most happen to the majority of the population who are moderate drinkers, rather than the heavy drinker minority. Chronic alcohol misuse and abuse has serious effects on physical and mental health. Chronic excess alcohol intake, or alcohol dependence, can lead to a wide range of neuropsychiatric or neurological impairment, cardiovascular disease, liver disease, and malignant neoplasms. The psychiatric disorders which are associated with alcoholism include major depression, dysthymia, mania, hypomania, panic disorder, phobias, generalized anxiety disorder, personality disorders, schizophrenia, suicide, neurologic deficits (e.g. impairments of working memory, emotions, executive functions, visuospatial abilities and gait and balance) and brain damage. Alcohol dependence is associated with hypertension, coronary heart disease, and ischemic stroke, cancer of the respiratory system, and also cancers of the digestive system, liver, breast and ovaries. Heavy drinking is associated with liver disease, such as cirrhosis. Excessive alcohol consumption can have a negative impact on aging.

Mortality effects

A 2016 systematic review and meta-analysis found that moderate ethanol consumption does not prolong life compared with lifetime abstention from ethanol consumption. A systematic analysis of data from the Global Burden of Disease study found that consumption of ethanol increases the risk of cancer and increases the risk of all-cause mortality, and that the level of ethanol consumption that minimizes disease is zero consumption. Some studies have concluded that drinking small quantities of alcohol (less than one drink in women and two in men) is associated with a decreased risk of heart disease, stroke, diabetes mellitus, and early death. Some of these studies lumped former ethanol drinkers and life-long abstainers into a single group of nondrinkers, hiding the health benefits of life-long abstention from ethanol. Drinking more than this amount actually increases the risk of heart disease, high blood pressure, atrial fibrillation, and stroke. Risk is greater in younger people due to binge drinking which may result in violence or accidents. About 3.3 million deaths (5.9% of all deaths) are believed to be due to alcohol each year.

Maximum quantity recommended

Total recorded alcohol per capita consumption (15+), in litres of pure alcohol

Different countries recommend different maximum quantities. In the UK, the Chief Medical Officers' recommends men and women drink no more than 14 units per week. A single unit corresponds to 8 g of ethanol. For most countries, the maximum quantity for men is 140 g–210 g per week. For women, the range is 84 g–140 g per week. Most countries recommend total abstinence during pregnancy and lactation. A 2018 study on 599912 drinkers in 19 different countries recommends a "safe" drinking limit of seven "standard" drinks per week, or 100 grams of pure alcohol per week.

Alcohol-related death

Disability-adjusted life year for alcohol use disorders per 100,000 inhabitants in 2004.
 
  no data
  less than 50
  50–150
  150–250
  250–350
  350–450
  450–550
  550–650
  650–750
  750–850
  850–950
  950–1050
  more than 1050

Over-consumption of alcohol causes many deaths worldwide. The overall mortality from alcohol use was found to be similar to that of the effect of physical inactivity. A review in 2009 found that "the net effect of alcohol consumption on health is detrimental, with an estimated 3.8% of all global deaths and 4.6% of global disability-adjusted life-years attributable to alcohol."

Extensive research of Western cultures has consistently shown increased survival associated with light to moderate alcohol consumption. A 23-year prospective study of 12,000 male British physicians aged 48–78, found that overall mortality was significantly lower in current drinkers compared to non-drinkers even after correction for ex-drinkers. This benefit was strongest for ischemic heart disease, but was also noted for other vascular disease and respiratory disease. Death rate amongst current drinkers was higher for 'alcohol augmentable' disease such as liver disease and oral cancers, but these deaths were much less common than cardiovascular and respiratory deaths. The lowest mortality rate was found for consumption of 8 to 14 'units' per week. In the UK a unit is defined as 10ml or 8g of pure alcohol. Higher consumption increased overall mortality rate, but not above that of non-drinkers. Other studies have found age-dependent mortality risks of low-to-moderate alcohol use: an increased risk for individuals aged 16–34 (due to increased risk of cancers, accidents, liver disease, and other factors), but a decreased risk for individuals ages 55+ (due to lower incidence of ischemic heart disease).

This is consistent with other research that found a J-curve dependency between alcohol consumption and total mortality among middle aged and older men. While the mortality rates of ex-drinkers and heavy drinkers are significantly elevated, the all-cause mortality rates may be 15–18% lower among moderate drinkers. Although the definition of a drink varies between studies and countries, this meta-analysis found that low levels of alcohol intake, defined as 1–2 drinks per day for women and 2–4 drinks per day for men, was associated with lower mortality than abstainers. This claim was challenged by another study that found that in certain low quality studies occasional drinkers or ex-drinkers were included as abstainers, resulting in the increased mortality in that group. However, the J-curve for total and CHD mortality was reconfirmed by studies that took the mentioned confounders into account. There seems to be little discussion of what proportion of individuals classified as abstainers are those already at greater risk of mortality due to chronic conditions and do not or cannot consume alcohol for reasons of health or harmful interactions with medication.

The observed decrease in mortality of light-to-moderate drinkers compared to never drinkers might be partially explained by superior health and social status of the drinking group; however, the protective effect of alcohol in light to moderate drinkers remains significant even after adjusting for these confounders. Additionally, confounders such as underreporting of alcohol intake might lead to the underestimation of how much mortality is reduced in light-to-moderate drinkers.

A 2010 study confirmed the beneficial effect of moderate alcohol consumption on mortality. Subjects were grouped into abstainers, light, moderate, and heavy drinkers. The order of mortality rates from lowest to highest were moderate, light, heavy, and abstainers. The increased risk for abstainers was twice the mortality rate as for moderate drinkers. This study specifically sought to control for confounding factors including the problem of ex-drinkers considered as non-drinkers. According to another study, drinkers with heavy drinking occasions (six or more drinks at a time) have a 57% higher all-cause mortality than drinkers without heavy drinking occasions.

Mortality is lowest among young abstainers and highest among young heavy drinkers.

According to a 2018 study people who had more than seven and up to 14 standard drinks per week, were likely to have their life expectancy shortened by around 6 months. Those who consumed over 14 drinks and up to 25 per week were likely to have 1–2 years taken off their lifespan, and a consumption of over 25 standard drinks per week correlated with 4–5 fewer years.

In contrast to studies of Western cultures, research in other cultures has yielded some opposite findings. The landmark INTERHEART Study has revealed that alcohol consumption in South Asians was not protective against CAD in sharp contrast to other populations who benefit from it. In fact Asian Indians who consume alcohol had a 60% higher risk of heart attack which was greater with local spirits (80%) than branded spirits (50%). The harm was observed in alcohol users classified as occasional as well as regular light, moderate, and heavy consumers.

Another large study of 4465 subjects in India also confirmed the possible harm of alcohol consumption on coronary risk in men. Compared to lifetime abstainers, alcohol users had higher blood sugar (2 mg/dl), blood pressure (2 mm Hg) levels, and the HDL-C levels (2 mg/dl) and significantly higher tobacco use (63% vs. 21%).

Many countries collect statistics on alcohol-related deaths. While some categories relate to short-term effects, such as accidents, many relate to long-term effects of alcohol.

Russia

One study claims that "excessive alcohol consumption in Russia, particularly by men, has in recent years caused more than half of all the deaths at ages 15–54 years." However, there are some difficulties with this study. For instance the same study also found a protective effect of heavy drinking on breast cancer mortality. This contradicts the well established scientific view that alcohol increases breast cancer risk. On this account in further correspondence it was advised that "careful interpretation of mortality statistics in relation to alcohol use is needed, taking into account other relevant risk factors, incidence, and survival."

The authors replied that "whether or not the apparent shortfall in breast cancer mortality among heavy drinkers is real, it accounts for only about 0.1% of adult deaths in Russia. Careful interpretation of it is therefore of little relevance to the findings for alcohol and overall mortality".

United Kingdom

A governmental report from Britain has found that "There were 8,724 alcohol-related deaths in 2007, lower than 2006, but more than double the 4,144 recorded in 1991. The alcohol-related death rate was 13.3 per 100,000 population in 2007, compared with 6.9 per 100,000 population in 1991." In Scotland, the NHS estimate that in 2003 one in every 20 deaths could be attributed to alcohol. A 2009 report noted that the death rate from alcohol-related disease was 9,000, a number three times that of 25 years previously.

A UK report came to the result that the effects of low-to-moderate alcohol consumption on mortality are age-dependent. Low-to-moderate alcohol use increases the risk of death for individuals aged 16–34 (due to increased risk of cancers, accidents, liver disease, and other factors), but decreases the risk of death for individuals ages 55+ (due to decreased risk of ischemic heart disease).

A study in the United Kingdom found that alcohol causes about 4% of cancer cases in the UK (12,500 cases per year).

United States

The Centers for Disease Control and Prevention report, "From 2001–2005, there were approximately 79,000 deaths annually attributable to excessive alcohol use. In fact, excessive alcohol use is the 3rd leading lifestyle-related cause of death for people in the United States each year." A 1993 study estimated US deaths through alcohol at 100,000.

Another Centers for Disease Control report from 2001 estimated that medium and high consumption of alcohol led to 75,754 deaths in the United States in 2001. Low consumption of alcohol had some beneficial effects, so a net 59,180 deaths were attributed to alcohol.

Longevity

In 2016, a meta-analysis of 87 studies investigating alcohol use and mortality risk was conducted. The studies analyzed had shown the largest mortality risk reduction in moderate drinkers, but these studies did not correct for confounding variables common with certain abstainers, such as previous alcoholism, and chronic health issues. After adjusting these studies for abstainer biases, no reduction in mortality risk was found for low-volume drinkers. However, there have been individual studies that show abstainers and heavy drinkers have an increased mortality of about 50% over moderate drinkers after adjustment for confounding factors.

Some animal studies have found increased longevity with exposure to various alcohols. The roundworm Caenorhabditis elegans has been used as a model for aging and age-related diseases. The lifespan of these worms has been shown to double when fed 0.005% ethanol, but does not markedly increase at higher concentrations. Supplementing starved cultures with n-propanol and n-butanol also extended lifespan.

Cardiovascular system

A meta-analysis of 34 studies found a reduced risk of mortality from coronary heart disease in men who drank 2–4 drinks per day and women who drank 1–2 drinks per day. Alcohol has been found to have anticoagulant properties. Thrombosis is lower among moderate drinkers than abstainers. A meta-analysis of randomized trials found that alcohol consumption in moderation decreases serum levels of fibrinogen, a protein that promotes clot formation, while it increases levels of tissue type plasminogen activator, an enzyme that helps dissolve clots. These changes were estimated to reduce coronary heart disease risk by about 24%. Another meta-analysis in 2011 found favorable changes in HDL cholesterol, adiponectin, and fibrinogen associated with moderate alcohol consumption.

Also, serum levels of C-reactive protein (CRP), a marker of inflammation and predictor of CHD (coronary heart disease) risk, are lower in moderate drinkers than in those who abstain from alcohol, suggesting that alcohol consumption in moderation might have anti-inflammatory effects.

Despite epidemiological evidence, many have cautioned against recommendations for the use of alcohol for health benefits. A physician from the World Health Organization labeled such alcohol promotion as "ridiculous and dangerous". One reviewer has noted, "Despite the wealth of observational data, it is not absolutely clear that alcohol reduces cardiovascular risk, because no randomized controlled trials have been performed. Alcohol should never be recommended to patients to reduce cardiovascular risk as a substitute for the well-proven alternatives of appropriate diet, exercise, and drugs." It has been argued that the health benefits from alcohol are at best debatable and may have been exaggerated by the alcohol industry. Some investigators hold that alcohol should be regarded as a recreational drug with potentially serious adverse effects on health and should not be promoted for cardio-protection.

Nevertheless, a large prospective non-randomized study has shown that moderate alcohol intake in individuals already at low risk based on body mass index, physical activity, smoking, and diet, yields further improvement in cardiovascular risk. Furthermore, a multicenter randomized diet study published in 2013 found that a Mediterranean-diet, which included an encouragement to daily wine consumption in habitual drinkers, led to a dramatic reduction in cardiovascular events.

Peripheral arterial disease

A prospective study published in 1997 found "moderate alcohol consumption appears to decrease the risk of PAD in apparently healthy men." In a large population-based study, moderate alcohol consumption was inversely associated with peripheral arterial disease in women but not in men. But when confounding by smoking was considered, the benefit extended to men. The study concluded "an inverse association between alcohol consumption and peripheral arterial disease was found in nonsmoking men and women."

Intermittent claudication

A study found that moderate consumption of alcohol had a protective effect against intermittent claudication. The lowest risk was seen in men who drank 1 to 2 drinks per day and in women who drank half to 1 drink per day.

Heart attack and stroke

Drinking in moderation has been found to help those who have suffered a heart attack survive it. However, excessive alcohol consumption leads to an increased risk of heart failure. A review of the literature found that half a drink of alcohol offered the best level of protection. However, they noted that at present there have been no randomised trials to confirm the evidence which suggests a protective role of low doses of alcohol against heart attacks. However, moderate alcohol consumption is associated with hypertension. There is an increased risk of hypertriglyceridemia, cardiomyopathy, hypertension, and stroke if 3 or more standard drinks of alcohol are taken per day.

Cardiomyopathy

Large amount of alcohol over the long term can lead to alcoholic cardiomyopathy. Alcoholic cardiomyopathy presents in a manner clinically identical to idiopathic dilated cardiomyopathy, involving hypertrophy of the musculature of the heart that can lead to congestive heart failure.

Hematologic diseases

Alcoholics may have anemia from several causes; they may also develop thrombocytopenia from direct toxic effect on megakaryocytes, or from hypersplenism.

Atrial fibrillation

Alcohol consumption increases the risk of atrial fibrillation, a type of abnormal heart rhythm. This remains true even at moderate levels of consumption.

Nervous system

Results of the ISCD 2010 study ranking the levels of damage caused by drugs, in the opinion of drug-harm experts. When harm to self and others is summed, alcohol was the most harmful of all drugs considered, scoring 72%

Chronic heavy alcohol consumption impairs brain development, causes alcohol dementia, brain shrinkage, physical dependence, alcoholic polyneuropathy (also known as 'alcohol leg'), increases neuropsychiatric and cognitive disorders and causes distortion of the brain chemistry. At present, due to poor study design and methodology, the literature is inconclusive on whether moderate alcohol consumption increases the risk of dementia or decreases it. Evidence for a protective effect of low to moderate alcohol consumption on age-related cognitive decline and dementia has been suggested by some research; however, other research has not found a protective effect of low to moderate alcohol consumption. Some evidence suggests that low to moderate alcohol consumption may speed up brain volume loss. Chronic consumption of alcohol may result in increased plasma levels of the toxic amino acid homocysteine; which may explain alcohol withdrawal seizures, alcohol-induced brain atrophy and alcohol-related cognitive disturbances. Alcohol's impact on the nervous system can also include disruptions of memory and learning, such as resulting in a blackout phenomenon.

Strokes

Epidemiological studies of middle-aged populations generally find the relationship between alcohol intake and the risk of stroke to be either U- or J-shaped. There may be very different effects of alcohol based on the type of stroke studied. The predominant form of stroke in Western cultures is ischemic, whereas non-western cultures have more hemorrhagic stroke. In contrast to the beneficial effect of alcohol on ischemic stroke, consumption of more than 2 drinks per day increases the risk of hemorrhagic stroke. The National Stroke Association estimates this higher amount of alcohol increases stroke risk by 50%. "For stroke, the observed relationship between alcohol consumption and risk in a given population depends on the proportion of strokes that are hemorrhagic. Light-to-moderate alcohol intake is associated with a lower risk of ischemic stroke which is likely to be, in part, causal. Hemorrhagic stroke, on the other hand, displays a loglinear relationship with alcohol intake."

Brain

Alcohol abuse is associated with widespread and significant brain lesions. Alcohol related brain damage is not only due to the direct toxic effects of alcohol; alcohol withdrawal, nutritional deficiency, electrolyte disturbances, and liver damage are also believed to contribute to alcohol-related brain damage.

Cognition and dementia

Excessive alcohol intake is associated with impaired prospective memory. This impaired cognitive ability leads to increased failure to carry out an intended task at a later date, for example, forgetting to lock the door or to post a letter on time. The higher the volume of alcohol consumed and the longer consumed, the more severe the impairments. One of the organs most sensitive to the toxic effects of chronic alcohol consumption is the brain. In the United States approximately 20% of admissions to mental health facilities are related to alcohol-related cognitive impairment, most notably alcohol-related dementia. Chronic excessive alcohol intake is also associated with serious cognitive decline and a range of neuropsychiatric complications. The elderly are the most sensitive to the toxic effects of alcohol on the brain. There is some inconclusive evidence that small amounts of alcohol taken in earlier adult life is protective in later life against cognitive decline and dementia. However, a study concluded, "Our findings suggest that, despite previous suggestions, moderate alcohol consumption does not protect older people from cognitive decline."

There is tentative evidence that drinking a small amount of alcohol may decrease the risk of Alzheimer's disease latter in life.

Wernicke–Korsakoff syndrome is a manifestation of thiamine deficiency, usually as a secondary effect of alcohol abuse. The syndrome is a combined manifestation of two eponymous disorders, Korsakoff's Psychosis and Wernicke's encephalopathy, named after Drs. Sergei Korsakoff and Carl Wernicke. Wernicke's encephalopathy is the acute presentation of the syndrome and is characterised by a confusional state while Korsakoff's psychosis main symptoms are amnesia and executive dysfunction. Banana bags, a bag of intravenous fluids containing vitamins and minerals, can be used to mitigate these outcomes.

Essential tremor

Essential tremors—or, in the case of essential tremors on a background of family history of essential tremors, familial tremors—can be temporarily relieved in up to two-thirds of patients by drinking small amounts of alcohol.

Ethanol is known to activate aminobutyric acid type A (GABAA) and inhibit N-methyl-D-aspartate (NMDA) glutamate receptors, which are both implicated in essential tremor pathology and could underlie the ameliorative effects. Additionally, the effects of ethanol have been studied in different animal essential tremor models.

Sleep

Chronic use of alcohol used to induce sleep can lead to insomnia: frequent moving between sleep stages occurs, with awakenings due to headaches and diaphoresis. Stopping chronic alcohol abuse can also lead to profound disturbances of sleep with vivid dreams. Chronic alcohol abuse is associated with NREM stage 3 and 4 sleep as well as suppression of REM sleep and REM sleep fragmentation. During withdrawal REM sleep is typically exaggerated as part of a rebound effect.

Mental health effects

High rates of major depressive disorder occur in heavy drinkers and those who abuse alcohol. Whether it is more true that major depressive disorder causes self-medicating alcohol abuse, or the increased incidence of the disorder in alcohol abusers is caused by the drinking, is not known though some evidence suggests drinking causes the disorder. Alcohol misuse is associated with a number of mental health disorders and alcoholics have a very high suicide rate. A study of people hospitalised for suicide attempts found that those who were alcoholics were 75 times more likely to go on to successfully commit suicide than non-alcoholic suicide attempters. In the general alcoholic population the increased risk of suicide compared to the general public is 5-20 times greater. About 15 percent of alcoholics commit suicide. Abuse of other drugs is also associated with an increased risk of suicide. About 33 percent of suicides in the under 35s are correlated with alcohol or other substance misuse.

Social skills are significantly impaired in people suffering from alcoholism due to the neurotoxic effects of alcohol on the brain, especially the prefrontal cortex area of the brain. The social skills that are impaired by alcohol abuse include impairments in perceiving facial emotions, prosody perception problems and theory of mind deficits; the ability to understand humour is also impaired in alcohol abusers.

Studies have shown that alcohol dependence relates directly to cravings and irritability. Another study has shown that alcohol use is a significant predisposing factor towards antisocial behavior in children. Depression, anxiety and panic disorder are disorders commonly reported by alcohol dependent people. Alcoholism is associated with dampened activation in brain networks responsible for emotional processing (e.g. the amygdala and hippocampus). Evidence that the mental health disorders are often induced by alcohol misuse via distortion of brain neurochemistry is indicated by the improvement or disappearance of symptoms that occurs after prolonged abstinence, although problems may worsen in early withdrawal and recovery periods. Psychosis is secondary to several alcohol-related conditions including acute intoxication and withdrawal after significant exposure. Chronic alcohol misuse can cause psychotic type symptoms to develop, more so than with other drugs of abuse. Alcohol abuse has been shown to cause an 800% increased risk of psychotic disorders in men and a 300% increased risk of psychotic disorders in women which are not related to pre-existing psychiatric disorders. This is significantly higher than the increased risk of psychotic disorders seen from cannabis use making alcohol abuse a very significant cause of psychotic disorders. Approximately 3 percent of people who are alcohol dependent experience psychosis during acute intoxication or withdrawal. Alcohol-related psychosis may manifest itself through a kindling mechanism. The mechanism of alcohol-related psychosis is due to distortions to neuronal membranes, gene expression, as well as thiamin deficiency. It is possible in some cases that alcohol abuse via a kindling mechanism can cause the development of a chronic substance-induced psychotic disorder, i.e. schizophrenia. The effects of an alcohol-related psychosis include an increased risk of depression and suicide as well as psychosocial impairments. However, moderate wine drinking has been shown to lower the risk for depression.

While alcohol initially helps social phobia or panic symptoms, with longer term alcohol misuse can often worsen social phobia symptoms and can cause panic disorder to develop or worsen, during alcohol intoxication and especially during the alcohol withdrawal syndrome. This effect is not unique to alcohol but can also occur with long-term use of drugs which have a similar mechanism of action to alcohol such as the benzodiazepines, which are sometimes prescribed as tranquillizers to people with alcohol problems. Approximately half of patients attending mental health services for conditions including anxiety disorders such as panic disorder or social phobia suffer from alcohol or benzodiazepine dependence. It was noted that every individual has an individual sensitivity level to alcohol or sedative hypnotic drugs and what one person can tolerate without ill health another will suffer very ill health and that even moderate drinking can cause rebound anxiety syndromes and sleep disorders. A person who is suffering the toxic effects of alcohol will not benefit from other therapies or medications as they do not address the root cause of the symptoms.

Addiction to alcohol, as with any drug of abuse tested so far, has been correlated with an enduring reduction in the expression of GLT1 (EAAT2) in the nucleus accumbens and is implicated in the drug-seeking behavior expressed nearly universally across all documented addiction syndromes. This long-term dysregulation of glutamate transmission is associated with an increase in vulnerability to both relapse-events after re-exposure to drug-use triggers as well as an overall increase in the likelihood of developing addiction to other reinforcing drugs. Drugs which help to re-stabilize the glutamate system such as N-acetylcysteine have been proposed for the treatment of addiction to cocaine, nicotine, and alcohol.

Digestive system and weight gain

The impact of alcohol on weight-gain is contentious: some studies find no effect, others find decreased or increased effect on weight gain.

Alcohol use increases the risk of chronic gastritis (stomach inflammation); it is one cause of cirrhosis, hepatitis, and pancreatitis in both its chronic and acute forms.

Metabolic syndrome

A study concluded, "Mild to moderate alcohol consumption is associated with a lower prevalence of the metabolic syndrome, with a favorable influence on lipids, waist circumference, and fasting insulin. This association was strongest among whites and among beer and wine drinkers." This is also true for Asians. A J-curve association between alcohol intake and metabolic syndrome was found: "The results of the present study suggest that the metabolic syndrome is negatively associated with light alcohol consumption (1–15 g alcohol/d) in Korean adults". However, "odds ratios for the metabolic syndrome and its components tended to increase with increasing alcohol consumption."

Gallbladder effects

Research has found that drinking reduces the risk of developing gallstones. Compared with alcohol abstainers, the relative risk of gallstone disease, controlling for age, sex, education, smoking, and body mass index, is 0.83 for occasional and regular moderate drinkers (< 25 ml of ethanol per day), 0.67 for intermediate drinkers (25-50 ml per day), and 0.58 for heavy drinkers. This inverse association was consistent across strata of age, sex, and body mass index." Frequency of drinking also appears to be a factor. "An increase in frequency of alcohol consumption also was related to decreased risk. Combining the reports of quantity and frequency of alcohol intake, a consumption pattern that reflected frequent intake (5–7 days/week) of any given amount of alcohol was associated with a decreased risk, as compared with nondrinkers. In contrast, infrequent alcohol intake (1–2 days/week) showed no significant association with risk."

A large self-reported study published in 1998 found no correlation between gallbladder disease and multiple factors including smoking, alcohol consumption, hypertension, and coffee consumption. A retrospective study from 1997 found vitamin C (ascorbic acid) supplement use in drinkers was associated with a lower prevalence of gallbladder disease, but this association was not seen in non-drinkers.

Liver disease

Alcoholic liver disease is a major public health problem. For example, in the United States up to two million people have alcohol-related liver disorders. Chronic alcohol abuse can cause fatty liver, cirrhosis and alcoholic hepatitis. Treatment options are limited and consist of most importantly discontinuing alcohol consumption. In cases of severe liver disease, the only treatment option may be a liver transplant from alcohol abstinent donors. Research is being conducted into the effectiveness of anti-TNFs. Certain complementary medications, e.g., milk thistle and silymarin, appear to offer some benefit. Alcohol is a leading cause of liver cancer in the Western world, accounting for 32-45% of hepatic cancers. Up to half a million people in the United States [DJS:  per year?] develop alcohol-related liver cancer. Moderate alcohol consumption also increases the risk of liver disease.

Pancreatitis

Alcohol abuse is a leading cause of both acute pancreatitis and chronic pancreatitis. Alcoholic pancreatitis can result in severe abdominal pain and may progress to pancreatic cancer. Chronic pancreatitis often results in intestinal malabsorption, and can result in diabetes.

Other systems

Respiratory system

Chronic alcohol ingestion can impair multiple critical cellular functions in the lungs. These cellular impairments can lead to increased susceptibility to serious complications from lung disease. Recent research cites alcoholic lung disease as comparable to liver disease in alcohol-related mortality. Alcoholics have a higher risk of developing acute respiratory distress syndrome (ARDS) and experience higher rates of mortality from ARDS when compared to non-alcoholics. Despite these effects, a large prospective study has shown a protective effect of moderate alcohol consumption on respiratory mortality.

Kidney stones

Research indicates that drinking alcohol is associated with a lower risk of developing kidney stones. One study concludes, "Since beer seemed to be protective against kidney stones, the physiologic effects of other substances besides ethanol, especially those of hops, should also be examined." "...consumption of coffee, alcohol, and vitamin C supplements were negatively associated with stones." "After mutually adjusting for the intake of other beverages, the risk of stone formation decreased by the following amount for each 240-ml (8-oz) serving consumed daily: caffeinated coffee, 10%; decaffeinated coffee, 10%; tea, 14%; beer, 21%; and wine, 39%." "...stone formation decreased by the following amount for each 240-mL (8-oz) serving consumed daily: 10% for caffeinated coffee, 9% for decaffeinated coffee, 8% for tea, and 59% for wine." (CI data excised from last two quotes.).

Sexual dysfunction

Long term excessive intake of alcohol can lead to damage to the central nervous system and the peripheral nervous system resulting in loss of sexual desire and impotence in men. This is caused by reduction of testosterone from ethanol-induced testicular atrophy, resulting in increased feminisation of males and is a clinical feature of alcohol abusing males who have cirrhosis of the liver.

Hormonal Imbalance

Excessive alcohol intake can result in hyperoestrogenisation. It has been speculated that alcoholic beverages may contain estrogen-like compounds. In men, high levels of estrogen can lead to testicular failure and the development of feminine traits including development of male breasts, called gynecomastia. In women, increased levels of estrogen due to excessive alcohol intake have been related to an increased risk of breast cancer.

Diabetes mellitus

A meta-analysis found with data from 477,200 individuals determined the dose-response relationships by sex and end point using lifetime abstainers as the reference group. The search revealed 20 cohort studies that met the inclusion criteria. A U-shaped relationship was found for both sexes. Compared with lifetime abstainers, the relative risk (RR) for type 2 diabetes among men was most protective when consuming 22 g/day alcohol (RR 0.87 [95% CI 0.76–1.00]) and became deleterious at just over 60 g/day alcohol (1.01 [0.71–1.44]). Among women, consumption of 24 g/day alcohol was most protective (0.60 [0.52–0.69]) and became deleterious at about 50 g/day alcohol (1.02 [0.83–1.26]).

Because former drinkers may be inspired to abstain due to health concerns, they may actually be at increased risk of developing diabetes, known as the sick-quitter effect. Moreover, the balance of risk of alcohol consumption on other diseases and health outcomes, even at moderate levels of consumption, may outweigh the positive benefits with regard to diabetes.

Additionally, the way in which alcohol is consumed (i.e., with meals or bingeing on weekends) affects various health outcomes. Thus, it may be the case that the risk of diabetes associated with heavy alcohol consumption is due to consumption mainly on the weekend as opposed to the same amount spread over a week. In the United Kingdom "advice on weekly consumption is avoided".
Also, a twenty-year twin study from Finland has shown that moderate alcohol consumption may reduce the risk of type 2 diabetes in men and women. However, binge drinking and high alcohol consumption was found to increase the risk of type 2 diabetes in women.  A study in mice has suggested a beneficial effect of alcohol in promoting insulin sensitivity.

Rheumatoid arthritis

Regular consumption of alcohol is associated with an increased risk of gouty arthritis and a decreased risk of rheumatoid arthritis. Two recent studies report that the more alcohol consumed, the lower the risk of developing rheumatoid arthritis. Among those who drank regularly, the one-quarter who drank the most were up to 50% less likely to develop the disease compared to the half who drank the least.

The researchers noted that moderate alcohol consumption also reduces the risk of other inflammatory processes such as cardiovascualar disease. Some of the biological mechanisms by which ethanol reduces the risk of destructive arthritis and prevents the loss of bone mineral density (BMD), which is part of the disease process.

A study concluded, "Alcohol either protects from RA or, subjects with RA curtail their drinking after the manifestation of RA". Another study found, "Postmenopausal women who averaged more than 14 alcoholic drinks per week had a reduced risk of rheumatoid arthritis..."

Osteoporosis

Moderate alcohol consumption is associated with higher bone mineral density in postmenopausal women. "...Alcohol consumption significantly decreased the likelihood [of osteoporosis]." "Moderate alcohol intake was associated with higher BMD in postmenopausal elderly women." "Social drinking is associated with higher bone mineral density in men and women [over 45]." However, alcohol abuse is associated with bone loss.

Skin

Chronic excessive alcohol abuse is associated with a wide range of skin disorders including urticaria, porphyria cutanea tarda, flushing, cutaneous stigmata of cirrhosis, psoriasis, pruritus, seborrheic dermatitis and rosacea.

A 2010 study concluded, "Nonlight beer intake is associated with an increased risk of developing psoriasis among women. Other alcoholic beverages did not increase the risk of psoriasis in this study."

Immune system

Bacterial infection

There is a protective effect of alcohol consumption against active infection with H. pylori In contrast, alcohol intake (comparing those who drink > 30g of alcohol per day to non-drinkers) is not associated with higher risk of duodenal ulcer. Excessive alcohol consumption seen in alcoholics is a known risk factor for pneumonia.

Common cold

A study on the common cold found that "Greater numbers of alcoholic drinks (up to three or four per day) were associated with decreased risk for developing colds because drinking was associated with decreased illness following infection. However, the benefits of drinking occurred only among nonsmokers. [...] Although alcohol consumption did not influence risk of clinical illness for smokers, moderate alcohol consumption was associated with decreased risk for nonsmokers."

Another study concluded, "Findings suggest that wine intake, especially red wine, may have a protective effect against common cold. Beer, spirits, and total alcohol intakes do not seem to affect the incidence of common cold."

Cancer

In 1988 the International Agency for Research on Cancer (Centre International de Recherche sur le Cancer) of the World Health Organization classified alcohol as a Group 1 carcinogen, stating "There is sufficient evidence for the carcinogenicity of alcoholic beverages in humans.... Alcoholic beverages are carcinogenic to humans (Group 1)." The U.S. Department of Health & Human Services’ National Toxicology Program in 2000 listed alcohol as a known carcinogen.

It was estimated in 2006 that "3.6% of all cancer cases worldwide are related to alcohol drinking, resulting in 3.5% of all cancer deaths." A European study from 2011 found that one in 10 of all cancers in men and one in 33 in women were caused by past or current alcohol intake. The World Cancer Research Fund panel report Food, Nutrition, Physical Activity and the Prevention of Cancer: a Global Perspective finds the evidence "convincing" that alcoholic drinks increase the risk of the following cancers: mouth, pharynx and larynx, oesophagus, colorectum (men), breast (pre- and postmenopause).

Acetaldehyde, a metabolic product of alcohol, is suspected to promote cancer. Typically the liver eliminates 99% of acetaldehyde produced. However, liver disease and certain genetic enzyme deficiencies result in high acetaldehyde levels. Heavy drinkers who are exposed to high acetaldehyde levels due to a genetic defect in alcohol dehydrogenase have been found to be at greater risk of developing cancers of the upper gastrointestinal tract and liver. A review in 2007 found "convincing evidence that acetaldehyde... is responsible for the carcinogenic effect of ethanol... owing to its multiple mutagenic effects on DNA." Acetaldehyde can react with DNA to create DNA adducts including the Cr-Pdg adduct. This Cr-PdG adduct "is likely to play a central role in the mechanism of alcoholic beverage related carcinogenesis." Some have pointed out that even moderate levels of alcohol consumption are associated with an increased risk of certain forms of cancer.

Alcohol's effect on the fetus

Fetal alcohol syndrome or FAS is a birth defect that occurs in the offspring of women who drink alcohol during pregnancy. Drinking heavily or during the early stages of prenatal development has been conclusively linked to FAS; moderate consumption is associated with fetal damage. Alcohol crosses the placental barrier and can stunt fetal growth or weight, create distinctive facial stigmata, damaged neurons and brain structures, and cause other physical, mental, or behavioural problems. Fetal alcohol exposure is the leading known cause of intellectual disability in the Western world. Alcohol consumption during pregnancy is associated with brain insulin and insulin-like growth factor resistance.

Long-term effects of alcoholism on family and children

Children raised in alcoholic families have the potential to suffer emotional distress as they move into their own committed relationships. These children are at a higher risk for divorce and separation, unstable marital conditions and fractured families. Feelings of depression and antisocial behaviors experienced in early childhood frequently contribute to marital conflict and domestic violence. Women are more likely than men to be victims of alcohol-related domestic violence.

Children of alcoholics often incorporate behaviors learned as children into their marital relationships. These behaviors lead to poor parenting practices. For example, adult children of alcoholics may simultaneously express love and rejection toward a child or spouse. This is known as insecure attachment. Insecure attachment contributes to trust and bonding issues with intimate partners and offspring. In addition, prior parental emotional unavailability contributes to poor conflict resolution skills in adult relationships. Evidence shows a correlation between alcoholic fathers who display harsh and ineffective parenting practices with adolescent and adult alcohol dependence.

Children of alcoholics are often unable to trust other adults due to fear of abandonment. Further, because children learn their bonding behaviors from watching their parents’ interactions, daughters of alcoholic fathers may be unable to interact appropriately with men when they reach adulthood. Poor behavior modeling by alcoholic parents contributes to inadequate understanding of how to engage in opposite gender interactions.

Sons of alcoholics are at risk for poor self-regulation that is often displayed in the preschool years. This leads to blaming others for behavioral problems and difficulties with impulse control. Poor decision-making correlates to early alcohol use, especially in sons of alcoholics. Sons often demonstrate thrill-seeking behavior, harm avoidance, and exhibit a low level of frustration tolerance.”

Health risks and alcohol consumption

There are many short and long term health conditions that are attributed to alcohol consumption. These harmful conditions over prolonged use are well documented to be hard to treat and as some of these health conditions result in permanent damage to several vital organs. There remains a very real implication of death due to one or more of these conditions. Approximately 88,000 deaths have been reported between the years 2006 to 2010 due to excessive alcohol consumption in the United States.

Physicians often state alcohol consumption as a direct cause of several chronic conditions becoming harder to manage, thus recommending small quantities over a low frequency to limit further damaging impairments. Some physicians emphatically recommend giving up alcohol in order to prevent heart disease, brain impairment and liver disease.

Centers for Disease Control defines a drink as 0.6 ounces of pure alcohol and excessive drinking as 8 or more drinks per week for women and 15 or more drinks per week for men.

Major Health Risks
 
- Sexual functions
 
Prolonged use of alcohol has been known to impair the nervous system, heart, liver and the reproductive organs resulting in reduced sexual abilities in adult males. Furthermore, due to the mental impairment often related to prolonged use can also lead to tendencies of practicing unprotected sexual intercourse and intercourse with multiple partners. This can result in sexually transmitted diseases along with unintended pregnancies.

- Effects on the unborn

Women who continue to consume alcohol during pregnancy are highly likely to have offspring that have birth defects. As alcohol is able to get directly into the nutrition that the mother is passing on to the baby through her placenta, there is a direct effect to the development of the fetus resulting in damaged cells, birth defects, neurological disorders and miscarriage .

- Effects on the vital organs

Studies have shown a damaging relation between higher amounts of alcohol consumption and organ damage. Cardiovascular problems like high blood pressure, cardiomyopathy and heart attacks have been attributed to excessive alcohol consumption. Beyond the circulatory system, kidney and liver disease are also attributed to alcohol consumption. Effects on brain function have been found, for example memory loss reduced intellectual ability, reduced brain size and coordination.

- Social effects

Prolonged excessive use are known to induce many hard to treat conditions like depression, impulsive decision making, violent and abusive behavior, reduced cognitive abilities. All of these can limit the quality of interactions with family, friends and can lead to harmful behavior towards self and others.

Economic impact from long-term consumption of alcohol

There is currently no consistent approach to measuring the economic impact of alcohol consumption. The economic burden such as direct, indirect, and intangible cost of diseases can be estimated through cost-of-illness studies. Direct costs are estimated through prevalence and incidence studies, while indirect costs are estimated through the human capital method, the demographic method, and the friction cost method. However it is difficult to accurately measure the economic impact due to differences in methodologies, cost items related to alcohol consumption, and measurement techniques.

Alcohol dependence has a far reaching impact on health outcomes. A study conducted in Germany in 2016 found the economic burden for those dependent on alcohol was 50% higher than those who were not. In the study, over half of the economic cost was due to lost productivity, and only 6% was due to alcohol treatment programs. The economic cost was mostly borne by individuals between 30 – 49 years old. In another study conducted with data from eight European countries, 77% of alcohol dependent patients suffered from psychiatric and somatic co-morbidity, which in turn increased systematic healthcare and economic cost. Alcohol consumption can also affect the immune system and produce complications in people suffering from HIV, pneumonia, and tuberculosis.

Indirect costs due to alcohol dependence are significant. The biggest indirect cost comes from lost productivity, followed by premature mortality. Men with alcohol dependence in the U.S. have lower labor force participation by 2.5%, lower earnings by 5.0%, and higher absenteeism by 0.5–1.2 days. Female binge drinkers have higher absenteeism by 0.4–0.9 days. Premature mortality is another large contributor to indirect costs of alcohol dependence. In 2004, 3.8% of global deaths were attributable to alcohol (6.3% for men and 1.1 for women). Those under 60 years old have much higher prevalence in global deaths attributable to alcohol at 5.3%.

In general, indirect costs such as premature mortality due to alcohol dependence, loss of productivity due to absenteeism and presenteeism, and cost of property damage and enforcement, far exceed the direct health care and law enforcement costs. Aggregating the economic cost from all sources, the impact can range from 0.45%–5.44% of a country's gross domestic product (GDP). The wide range is due to inconsistency in measurement of economic burden, as researchers in some studies attributed possible positive effects from long term alcohol consumption.

Alcohol intoxication

From Wikipedia, the free encyclopedia

Alcohol intoxication
SynonymsDrunkenness, alcohol poisoning, ethanol intoxication, acute alcohol intoxication
Michelangelo drunken Noah.jpg
The Drunkenness of Noah by Michelangelo
SpecialtyToxicology, psychiatry
SymptomsMild: Mild sedation, decreased coordination
Moderate:Slurred speech, trouble walking, vomiting
Severe: Decreased effort to breathe, coma
ComplicationsSeizures, aspiration pneumonia, injuries, low blood sugar
Usual onsetOver minutes to hours
DurationSeveral hours
CausesEthanol (alcohol)
Risk factorsSocial environment, impulsivity
Diagnostic methodTypically based on history of events and physical examination
Differential diagnosisHepatic encephalopathy, Wernicke encephalopathy, methanol toxicity, meningitis, traumatic brain injury
TreatmentSupportive care
FrequencyVery common (especially in the Western world)
Deathsc. 2,200 per year (USA)

Alcohol intoxication, also known as drunkenness or alcohol poisoning, is negative behavior and physical effects due to the recent drinking of ethanol (alcohol). Symptoms at lower doses may include mild sedation and poor coordination. At higher doses, there may be slurred speech, trouble walking, and vomiting. Extreme doses may result in a decreased effort to breathe (respiratory depression), coma, or death. Complications may include seizures, aspiration pneumonia, injuries including suicide, and low blood sugar.

Alcohol intoxication typically begins after two or more alcoholic drinks. Risk factors include a social situation where heavy drinking is common and a person having an impulsive personality. Diagnosis is usually based on the history of events and physical examination. Verification of events by the people a person was with may be useful. Legally, alcohol intoxication is often defined as a blood alcohol concentration (BAC) of greater than 5.4-17.4 mmol/L (25–80 mg/dL or 0.025-0.080%). This can be measured by blood or breath testing. Alcohol is then broken down at a rate of about 3.3 mmol/L (15 mg/dL) per hour.

Management of alcohol intoxication involves supportive care. Typically this includes putting the person in the recovery position, keeping them warm, and making sure they are breathing sufficiently. Gastric lavage and activated charcoal have not been found to be useful. Repeated assessments may be required to rule out other potential causes of a person's symptoms.

Alcohol intoxication is very common, especially in the Western world. Most people who drink alcohol have at some time been intoxicated. In the United States acute intoxication directly results in about 2,200 deaths per year, and indirectly more than 30,000 deaths per year. Acute intoxication has been documented throughout history and alcohol remains one of the world's most widespread recreational drugs. Some religions consider alcohol intoxication to be a sin.

Signs and symptoms

Wine is a Mocker by Jan Steen c. 1663

Alcohol intoxication is the negative health effects due to the recent drinking of ethanol (alcohol). When severe it may become a medical emergency. Some effects of alcohol intoxication, such as euphoria and lowered social inhibition, are central to alcohol's desirability.

The signs and symptoms of acute alcohol poisoning include:

Pathophysiology

Alcohol is metabolized by a normal liver at the rate of about 8 grams of pure ethanol per hour. 8 grams or 10 ml (0.34 US fl oz) is one British standard unit. An "abnormal" liver with conditions such as hepatitis, cirrhosis, gall bladder disease, and cancer is likely to result in a slower rate of metabolism.

Ethanol is metabolised to acetaldehyde by alcohol dehydrogenase (ADH), which is found in many tissues, including the gastric mucosa. Acetaldehyde is metabolised to acetate by acetaldehyde dehydrogenase (ALDH), which is found predominantly in liver mitochondria. Acetate is used by the muscle cells to produce acetyl-CoA using the enzyme acetyl-CoA synthetase, and the acetyl-CoA is then used in the citric acid cycle.

Ethanol's acute effects are due largely to its nature as a central nervous system depressant, and are dependent on blood alcohol concentrations:
As drinking increases, people become sleepy, or fall into a stupor. After a very high level of consumption, the respiratory system becomes depressed and the person will stop breathing. Comatose patients may aspirate their vomit (resulting in vomitus in the lungs, which may cause "drowning" and later pneumonia if survived). CNS depression and impaired motor co-ordination along with poor judgment increases the likelihood of accidental injury occurring. It is estimated that about one-third of alcohol-related deaths are due to accidents and another 14% are from intentional injury.

In addition to respiratory failure and accidents caused by effects on the central nervous system, alcohol causes significant metabolic derangements. Hypoglycaemia occurs due to ethanol's inhibition of gluconeogenesis, especially in children, and may cause lactic acidosis, ketoacidosis, and acute renal failure. Metabolic acidosis is compounded by respiratory failure. Patients may also present with hypothermia.

Mechanism

In the past, alcohol was believed to be a non-specific pharmacological agent affecting many neurotransmitter systems in the brain. However, molecular pharmacology studies have shown that alcohol has only a few primary targets. In some systems, these effects are facilitatory and in others inhibitory.

Among the neurotransmitter systems with enhanced functions are: GABAA, 5-HT3 receptor agonism (responsible for GABAergic (GABAA receptor PAM), glycinergic, and cholinergic effects), nicotinic acetylcholine receptors.

Among those that are inhibited are: NMDA, dihydropyridine-sensitive L-type Ca2+ channels and G-protein-activated inwardly rectifying K+ channels.

The result of these direct effects is a wave of further indirect effects involving a variety of other neurotransmitter and neuropeptide systems, leading finally to the behavioural or symptomatic effects of alcohol intoxication.

GABAA receptors

Ethanol binding to GABAA receptor

Many of the effects of activating GABAA receptors have the same effects as that of ethanol consumption. Some of these effects include anxiolytic, anticonvulsant, sedative, and hypnotic effects, cognitive impairment, and motor incoordination. This correlation between activating GABAA receptors and the effects of ethanol consumption has led to the study of ethanol and its effects on GABAA receptors. It has been shown that ethanol does in fact exhibit positive allosteric binding properties to GABAA receptors. However, binding is only limited to pentamers containing the δ-subunit rather than the γ-subunit. GABAA receptors containing the δ-subunit have been shown to be located exterior to the synapse and are involved with tonic inhibition rather than its γ-subunit counterpart, which is involved in phasic inhibition. The δ-subunit has been shown to be able to form the allosteric binding site which makes GABAA receptors containing the δ-subunit more sensitive to ethanol concentrations, even to moderate social ethanol consumption levels (30mM). While it has been shown by Santhakumar et al. that GABAA receptors containing the δ-subunit are sensitive to ethanol modulation, depending on subunit combinations receptors, could be more or less sensitive to ethanol. It has been shown that GABAA receptors that contain both δ and β3-subunits display increased sensitivity to ethanol. One such receptor that exhibits ethanol insensitivity is α3-β6-δ GABAA. It has also been shown that subunit combination is not the only thing that contributes to ethanol sensitivity. Location of GABAA receptors within the synapse may also contribute to ethanol sensitivity.

Diagnosis

Definitive diagnosis relies on a blood test for alcohol, usually performed as part of a toxicology screen. Law enforcement officers in the United States and other countries often use breathalyzer units and field sobriety tests as more convenient and rapid alternatives to blood tests. There are also various models of breathalyzer units that are available for consumer use. Because these may have varying reliability and may produce different results than the tests used for law-enforcement purposes, the results from such devices should be conservatively interpreted.

Many informal intoxication tests exist, which, in general, are unreliable and not recommended as deterrents to excessive intoxication or as indicators of the safety of activities such as motor vehicle driving, heavy equipment operation, machine tool use, etc.

For determining whether someone is intoxicated by alcohol by some means other than a blood-alcohol test, it is necessary to rule out other conditions such as hypoglycemia, stroke, usage of other intoxicants, mental health issues, and so on. It is best if his / her behavior has been observed while the subject is sober to establish a baseline. Several well-known criteria can be used to establish a probable diagnosis. For a physician in the acute-treatment setting, acute alcohol intoxication can mimic other acute neurological disorders, or is frequently combined with other recreational drugs that complicate diagnosis and treatment.

Management

Acute alcohol poisoning is a medical emergency due to the risk of death from respiratory depression or aspiration of vomit if vomiting occurs while the person is unresponsive. Emergency treatment strives to stabilize and maintain an open airway and sufficient breathing, while waiting for the alcohol to metabolize. This can be done by removal of any vomitus or, if the person is unconscious or has impaired gag reflex, intubation of the trachea.

Other measures may include
  • Treat low blood sugar, with intravenous sugar solutions as ethanol induced low blood sugar unresponsive to glucagon.
  • Administer the vitamin thiamine to prevent Wernicke-Korsakoff syndrome, which can cause a seizure (more usually a treatment for chronic alcoholism, but in the acute context usually co-administered to ensure maximal benefit).
  • Apply hemodialysis if the blood concentration is dangerously high (>400 mg/dL), and especially if there is metabolic acidosis.
  • Provide oxygen therapy as needed via nasal cannula or non-rebreather mask.
  • While the medication metadoxine may speed the breakdown of alcohol, use in alcohol intoxication requires further study as of 2017. It is approved in a number of countries in Europe, as well as India and Brazil.
Additional medication may be indicated for treatment of nausea, tremor, and anxiety.

Prognosis

A normal liver detoxifies the blood of alcohol over a period of time that depends on the initial level and the patient's overall physical condition. An abnormal liver will take longer but still succeeds, provided the alcohol does not cause liver failure.

People having drunk heavily for several days or weeks may have withdrawal symptoms after the acute intoxication has subsided.

A person consuming a dangerous amount of alcohol persistently can develop memory blackouts and idiosyncratic intoxication or pathological drunkenness symptoms.

Long-term persistent consumption of excessive amounts of alcohol can cause liver damage and have other deleterious health effects.

Society and culture

A 1936 anti-drinking poster

Alcohol intoxication is a risk factor in some cases of catastrophic injury, in particular for unsupervised recreational activity. A study in the province of Ontario based on epidemiological data from 1986, 1989, 1992, and 1995 states that 79.2% of the 2,154 catastrophic injuries recorded for the study were preventable, of which 346 involved alcohol consumption. The activities most commonly associated with alcohol-related catastrophic injury were snowmobiling (124), fishing (41), diving (40), boating (31) and canoeing (7), swimming (31), riding an all-terrain vehicle (24), and cycling (23). These events are often associated with unsupervised young males, often inexperienced in the activity, and many result in drowning. Alcohol use is also associated with unsafe sex.

Legal issues

A drunk-driving simulator in Montreal

Laws on drunkenness vary. In the United States, it is a criminal offense for a person to be drunk while driving a motorized vehicle, except in Wisconsin, where it is only a fine for the first offense. It is also a criminal offense to fly an aircraft or (in some American states) to assemble or operate an amusement park ride while drunk. Similar laws also exist in the United Kingdom and most other countries.

In some countries, it is also an offense to serve alcohol to an already-intoxicated person, and, often, alcohol can be sold only by persons qualified to serve responsibly through alcohol server training.

The blood alcohol content (BAC) for legal operation of a vehicle is typically measured as a percentage of a unit volume of blood. This percentage ranges from 0.00% in Romania and the United Arab Emirates; to 0.05% in Australia, South Africa, Germany, Scotland and New Zealand (but 0.00% for under 20 year olds); to 0.08% in England and Wales, the United States and Canada.

The United States Federal Aviation Administration prohibits crew members from performing their duties within eight hours of consuming an alcoholic beverage, while under the influence of alcohol, or with a BAC greater than 0.04%.

In the United States, the United Kingdom, and Australia, public intoxication is a crime (also known as "being drunk and disorderly" or "being drunk and incapable").

In some countries, there are special facilities, sometimes known as "drunk tanks", for the temporary detention of persons found to be drunk.

Religious views

Some religious groups permit the consumption of alcohol. Some permit consumption but prohibit intoxication, while others prohibit alcohol consumption altogether. Many Christian denominations such as Catholic, Orthodox, and Lutheran use wine as a part of the Eucharist and permit the drinking of alcohol but consider it sinful to become intoxicated.

In the Bible, the book of Proverbs contains several chapters dealing with the bad effects of drunkenness and warning to stay away from intoxicating beverages. The book of Leviticus tells of Nadab and Abihu, Aaron the Priest's eldest sons, who were killed for serving in the temple after drinking wine, presumably while intoxicated. The book continues to discuss monasticism where drinking wine is prohibited. The story of Samson in the Book of Judges tells of a monk from the tribe of Dan who is prohibited from cutting his hair and drinking wine. Romans 13:13–14, 1 Corinthians 6:9–11, Galatians 5:19–21, and Ephesians 5:18 are among a number of other Bible passages that speak against drunkenness. While Proverbs 31:4, warns against kings and rulers drinking wine and strong drink, Proverbs 31:6–7 promotes giving strong drink to the perishing and wine to those whose lives are bitter, to forget their poverty and troubles.

Some Protestant Christian denominations prohibit the drinking of alcohol based upon Biblical passages that condemn drunkenness, but others allow moderate use of alcohol. In some Christian groups, a small amount of wine is part of the rite of communion.

In the Church of Jesus Christ of Latter-day Saints, alcohol consumption is forbidden, and teetotalism has become a distinguishing feature of its members. Jehovah's Witnesses allow moderate alcohol consumption among its members.

In the Qur'an, there is a prohibition on the consumption of grape-based alcoholic beverages, and intoxication is considered as an abomination in the Hadith. Islamic schools of law (Madh'hab) have interpreted this as a strict prohibition of the consumption of all types of alcohol and declared it to be haraam ("forbidden"), although other uses may be permitted.

In Buddhism, in general, the consumption of intoxicants is discouraged for both monastics and lay followers. Many followers of Buddhism observe a code of conduct known as the five precepts, of which the fifth precept is an undertaking to refrain from the consumption of intoxicating substances (except for medical reasons). In the bodhisattva vows of the Brahma Net Sūtra, observed by Mahāyāna Buddhist communities, distribution of intoxicants is likewise discouraged, as well as consumption.

In the branch of Hinduism known as Gaudiya Vaishnavism, one of the four regulative principles forbids the taking of intoxicants, including alcohol.

In Judaism, in accordance with the biblical stance against drinking, wine drinking was not permitted for priests and monks. The biblical command to sanctify the Sabbath day and other holidays has been interpreted as having three ceremonial meals which include drinking of wine, the Kiddush. The Jewish marriage ceremony ends with the bride and groom drinking a shared cup of wine after reciting seven blessings, and according to western "Ashkenazi" traditions, after a fast day. But it has been customary and in many cases even mandated to drink moderately so as to stay sober, and only after the prayers are over.

During the Seder night on Passover (Pesach) there is an obligation to drink 4 ceremonial cups of wine, while reciting the Haggadah. It has been assumed as the source for the wine drinking ritual at the communion in some Christian groups. During Purim there is an obligation to become intoxicated, although, as with many other decrees, in many communities this has been avoided, by allowing sleep during the day to replace it.

In the 1920s due to the new beverages law, a rabbi from the Reform Judaism movement proposed using grape-juice for the ritual instead of wine. Although refuted at first, the practice became widely accepted by orthodox Jews as well.

At the Cave of the Patriarchs in Hebron—the Ibrahimi Mosque as it is called by the Muslims, the Jewish wine drinking rituals during weddings, the Sabbath day and holidays, are a cause for tension with the Muslims who unwillingly share the site under Israeli authority.

Other animals

In the movie Animals are Beautiful People, an entire section was dedicated to showing many different animals including monkeys, elephants, hogs, giraffes, and ostriches, eating over-ripe marula tree fruit causing them to sway and lose their footing in a manner similar to human drunkenness. Birds may become intoxicated with fermented berries and some die colliding with hard objects when flying under the influence.

In elephant warfare, practiced by the Greeks during the Maccabean revolt and by Hannibal during the Punic wars, it has been recorded that the elephants would be given wine before the attack, and only then would they charge forward after being agitated by their driver.

It is a regular practice to give small amounts of beer to race horses in Ireland. Ruminant farm animals have natural fermentation occurring in their stomach, and adding alcoholic beverages in small amounts to their drink will generally do them no harm, and will not cause them to become drunk.

Degenerative disc disease

From Wikipedia, the free encyclopedia https://en.wikipedia.org/wiki/Deg...